CVE-2026-21521
Unknown
Unknown - Not Provided
BaseFortify
Publication date: 2026-01-22
Last updated on: 2026-02-02
Assigner: Microsoft Corporation
Description
Description
Improper neutralization of escape, meta, or control sequences in Copilot allows an unauthorized attacker to disclose information over a network.
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| microsoft | 365_word_copilot | * |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-150 | The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could be interpreted as escape, meta, or control character sequences when they are sent to a downstream component. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability involves improper neutralization of escape, meta, or control sequences in Copilot, which allows an unauthorized attacker to disclose information over a network.
How can this vulnerability impact me? :
The vulnerability can lead to unauthorized disclosure of sensitive information over a network, potentially exposing confidential data to attackers.
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